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 Robotics / RCX / legOS / *3324 (-40)
  Re: Modifying the BrickOS source code
 
(...) The build system is not particularly complex. $ ./configure $ make You will, of course, have to either build or install prebuilt cross compiler binaries first. Info on the brickOS website, ask here if you run into problems. I'm not quite sure (...) (21 years ago, 1-Jul-03, to lugnet.robotics.rcx.legos)
 
  Re: Help with lnp
 
(...) Katie, I am also doing a project which envolves getting information from the RCX using the BrickOS and Cygwin. I tried the same approach with using the Linux files but, I found another way to get information. If your familiar with Java you can (...) (21 years ago, 1-Jul-03, to lugnet.robotics.rcx.legos)
 
  Modifying the BrickOS source code
 
Hey, My friend and I are tring to modify the BrickOS memmory management for a computer Science senior project. I am trying to help him out with it. We are wondering if anyone can give us some information on how we can edit the source code and then (...) (21 years ago, 1-Jul-03, to lugnet.robotics.rcx.legos)
 
  Re: Help with lnp
 
(...) Hello katie, Have you read on my page How to comile it ? :) liblnp.h call function from the lib. You not only need to include this file ! you need the library ! Download it here : (URL) need to run lnpd before run your program Oh I just see (...) (21 years ago, 30-Jun-03, to lugnet.robotics.rcx.legos)
 
  Help with lnp
 
Hello, I am currently in the middle of a research project using Mindstorms robots. We are using brickOS and are working on algorithsm for dispersion. One thing that would be handy to do, however, is be able to record the path the robot takes and (...) (21 years ago, 30-Jun-03, to lugnet.robotics.rcx.legos)
 
  display driver data segment
 
hi folks ! can anyone explain me how the lcddata segment is used in legos ! it seems to me there are some routines which use the rom and some which dont. especially i dont get that the conio.c accesses with the dlcd_* functions the lower lcd data (...) (21 years ago, 26-Jun-03, to lugnet.robotics.rcx.legos)
 
  realloc in legos(brickOS)
 
can someone please help this guy? ive been out of the loop for some time and really dont know if anyone has made any realloc functions for legos (working in 0.2.6). below is the email he sent me. his email address is: renespanw@hotmail.com regards (...) (21 years ago, 23-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: Error linking c++ with gcc 3.3
 
No, I'm sorry, it doesn't seem to quite work. But it does get rid of the 3 errors at the bottom - Now it's just the operator new/delete stuff. I replaced the stub.c with the thing below, made libc++.a, and just make in lib/c++, and then go to demo (...) (21 years ago, 19-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: Error linking c++ with gcc 3.3
 
(...) You should add -fno-rtti -fno-exceptions to the CXXFLAGS in Makefile.common. To get rid of the operator new/delete errors you can replace lib/c++/stub.c with a stub.cpp containing the following. Don't forget to update the Makefile. This works (...) (21 years ago, 18-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
(...) The only time(s) I encountered this type of issue were when I compiled the .srec with different set of compiler settings (or with a different set of header files) than what was used for compiling the Demo/Application code. For instance, if I (...) (21 years ago, 17-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
(...) As for this one, I thought I linked the library statically so you wouldn't require it. Oh well, I'll fix that and let people know when I've updated it. You shouldn't need to install the libraries to use the tools. Michael (Zapp not van der (...) (21 years ago, 17-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
(...) <<snipped>> (...) <<snipped>> (...) I've gotten the same error with gcc 3.2.3 that I compiled and gcc 3.2.2 that the other Michael compiled. I couldn't get gcc 3.3 to compile on my machine. Running gcc -v I get the following responses: (my (...) (21 years ago, 17-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
(...) No, they aren't problems in your end, and no, they're also not gcc's fault. LegOS uses a now unsupported extension to C: multi-line strings. The way they can be made to work is by inserting \n\ on the end of the offending lines. I did this to (...) (21 years ago, 17-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
In lugnet.robotics.rcx.legos, Rich Warren wrote: ... (...) Well, it must be something weird then, what compiler *is* Michael's compiler? (gcc 3.2.3? what?) After all, all cross-compilers should work about the same.... It's a different compiler to (...) (21 years ago, 17-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
You know, it doesn't matter how long I wait before sending out a question... I figured out the trouble with firmdl3. I'd assumed the black plug in the USB port was the IR Tower, which I'd plugged in earlier today. However, my wife had been (...) (21 years ago, 16-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
In lugnet.robotics.rcx.legos, Rich Warren wrote: ... (...) Hmm... I just read your thing, and I realised I'm posting exactly the same error, different platform (Linux). Are you using g++-3.3? Or is it another compiler? Michael (van der Kolff, not (...) (21 years ago, 17-Jun-03, to lugnet.robotics.rcx.legos)
 
  Error linking c++ with gcc 3.3
 
Hi, I'm having a slight problem building the c++ demos with gcc-3.3. (I had to do a tiny patch against a few files to overcome the fact that multiline strings are now not supported). But when it comes to building the c++ demos, I get the following (...) (21 years ago, 17-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
(...) You know, I think there's some cosmic law. Just after hitting the send key, I'll almost always realize my question was stupid. Looking at the errors I was getting, I noticed that it was the utilities that you'd already created. firmdl3 has the (...) (21 years ago, 16-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: Varying the output voltage?
 
(...) The power motors that come with the RIS are very efficient, so the load is very light and speed changes very little. Then of course it depend on your robot, if you use caterpillar tracks you will generally have more load than with wheels. An (...) (21 years ago, 15-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: Varying the output voltage?
 
(...) you're right, I forgot float. Thanks for clearing the rest up for me :-) Doesn't the motor itself have a "load" when it works with no actual load? "which reduces power but not speed" Timothy (21 years ago, 15-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
(...) Hi, First, in terms of my compiler build (referencing your previous post...) what I had a problem with was building the sample C++ code that came with BrickOS. I don't need C++ so I haven't investigated this any further. You're free to try my (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: Varying the output voltage?
 
This is what I noticed, comparing the two systems with BrickOS One thing that I noticed was at the lower voltages the needle on my multimeter wavered around a little and it tended to steady at the higher power levels All of the readings were taken (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
 
  OS X Complier problems solved--now struggling with BrickOS
 
Ok, you can (perhaps--I haven't been able to test it yet) ignore my previous post. I was trying to build the cross compiler using GCC 3.3, and nothing I tried would work. When I switched to 3.2.3, the errors disappeared. So I'm making the temporary (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
 
  Cross Compiler for the Mac Os X
 
Has anyone had any luck creating a cross complier for the Mac? I've downloaded Michael Zapp's, but he said it wasn't working for C++. I've been trying to compile my own, but I keep getting errors. Any suggestions or pointers would be greatly (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: Varying the output voltage?
 
(...) Actually there are four, sort of, as for 0 there are float (contacts separated, infinite resistance) and brake (contacts shorted, zero resistance). The standard firmware switches rapidly between on and float (each cycle takes 8ms), which (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: Varying the output voltage?
 
(...) The eight different power level pulsing is called "PWM", translation=Pulse width modulation. PWM is the way a digital chip cheats/mimics true analog without a D/A convertor. Since the only output of a digital chip is on or off, there is no (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
 
  Varying the output voltage?
 
I was wondering if it was possible to control the speed/torque of the motor by varying the output voltage in brickOS. It seems that the speed parameter on the motors only changes the rate at which they pulse on and off. I am looking for something (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
 
  Communication between RCX
 
Hello there, I've wrote a little library who permit you to communicate with RCX easily All information is in the package (URL) (21 years ago, 13-Jun-03, to lugnet.robotics.rcx.legos)
 
  BrickOS Talking to Robolab?
 
Has anyone used BrickOS to talk to Robolab? I really like the Robolab visualization tools and it would be a shame to not be able to fool Robolab into to talking to the BrickOS firmware. I am in the process of designing a simple Fuzzy controller and (...) (21 years ago, 11-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: DCC for the RCX
 
(Sorry, did FUT to .legos, but didn't post to it. I'm such a newbie!) (...) (21 years ago, 10-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: DCC for the RCX
 
Hi Ralph, I should be able to extract the source for the low level driver routines this week. If anyone else is interested, please email me. Note for BrickOS users: it's not simply a matter of plonking the routines into a program. The kernel will (...) (21 years ago, 9-Jun-03, to lugnet.robotics.rcx, lugnet.trains, lugnet.robotics.rcx.legos)
 
  Re: brickos-0.2.6.10 error
 
Scott, You need to put a .depend file and Makefile inside the directory you are compiling the programs in. Just create a file with the extenstion .depend and put it into your programs directory. There dosn't need to be anything in the file. When you (...) (21 years ago, 3-Jun-03, to lugnet.robotics.rcx.legos)
 
  brickos-0.2.6.10 error
 
I get this when ever I try to compile a program. Scott Davis@Scott ~ $ cd /brickos/programs Scott Davis@Scott /brickos/programs $ dir Makefile motor.c Scott Davis@Scott /brickos/programs $ make motor.lx Makefile:51: .depend: No such file or (...) (21 years ago, 2-Jun-03, to lugnet.robotics.rcx.legos)
 
  Re: PC to RCX communication
 
You may check out javastorms at www.javastroms.org. The project seem to be abandoned, but the code is available. Basically it does what you aim for so it should be a good starting point. I have used the code as base for some of my own projects and (...) (21 years ago, 26-May-03, to lugnet.robotics.rcx.legos)
 
  Re: PC to RCX communication
 
This Thread could probably answer more :) (URL) this helps "Shehryar Shaheen" <shehryar.shaheen@ul.ie> wrote in message news:HFD5yE.1pxM@lugnet.com... (...) a (...) java.comm (...) (21 years ago, 23-May-03, to lugnet.robotics.rcx.legos)
 
  Re: PC to RCX communication
 
It's been a while since I last played with LNP but I can recall that it works well under Linux. The LNP deamon must be running on the PC before the RCX and the PC can communicate. I think with windows you still need the LNP deamon running under (...) (21 years ago, 23-May-03, to lugnet.robotics.rcx.legos)
 
  PC to RCX communication
 
I'm working a project to communicate from a PC to an RCX running the current version of BrickOS-0.2.6.10. I'm running windows 2000 professional and I use the current version of Cygwin. The idea behind the project is to create a Java application that (...) (21 years ago, 23-May-03, to lugnet.robotics.rcx.legos)
 
  BricxCC release 3.3.7.5
 
Version 3.3.7.5 fixes two bugs with the copy to clipboard function on the Analysis graph. It fixes the Clear Memory function so that it now clears all five program slots (it used to leave slot 1 untouched). It fixes form and component size issues (...) (21 years ago, 22-May-03, to lugnet.robotics.rcx.nqc, lugnet.robotics.rcx.legos, lugnet.robotics.rcx)
 
  Re: USB on winXP/2k problem: cannot download
 
(...) Dear all, Sorry. I made a mistake. I had installed 2.5 instead of 2.6.10 of brickos. Now it works fine. Many thanks, G. (21 years ago, 22-May-03, to lugnet.robotics.rcx.legos)
 
  USB on winXP/2k problem: cannot download
 
Dear All, I have installed cygwin, compiled brickOS and tried to download the firmware and software. I cannot make firmdl3 or dll to work: "Error 2: Opening USB" The same error when the tower is attached and when it is not. I can download the (...) (21 years ago, 22-May-03, to lugnet.robotics.rcx.legos)


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